 Let "A" = "K"⟨"x"1, ..., "x""n"⟩ be the free algebra over a field "K" in "n" = "d" + 1 non-commuting variables "x""i".Let "J" be the 2-sided ideal of "A" generated by homogeneous elements "f""j" of "A" of degree "d""j" with 

where "d""j" tends to infinity.Let "r""i" be the number of "d""j" equal to "i".